shaders/model_font.h

   1 #ifndef SHADER_model_font_H
   2 #define SHADER_model_font_H
   3 static void shader_model_font_link(void);
   4 static void shader_model_font_register(void);
   5 static struct vg_shader _shader_model_font = {
   6    .name = "model_font",
   7    .link = shader_model_font_link,
   8    .vs =
   9 {
  10 .orig_file = "shaders/model_font.vs",
  11 .static_src =
  12 "layout (location=0) in vec3 a_co;\n"
  13 "layout (location=1) in vec3 a_norm;\n"
  14 "layout (location=2) in vec2 a_uv;\n"
  15 "layout (location=3) in vec4 a_colour;\n"
  16 "layout (location=4) in vec4 a_weights;\n"
  17 "layout (location=5) in ivec4 a_groups;\n"
  18 "\n"
  19 "#line       1        1 \n"
  20 "const float k_motion_lerp_amount = 0.01;\n"
  21 "\n"
  22 "#line      2        0 \n"
  23 "\n"
  24 "out vec3 aMotionVec0;\n"
  25 "out vec3 aMotionVec1;\n"
  26 "\n"
  27 "void vs_motion_out( vec4 vproj0, vec4 vproj1 )\n"
  28 "{\n"
  29 "   // This magically solves some artifacting errors!\n"
  30 "   //\n"
  31 "   vproj1 = vproj0*(1.0-k_motion_lerp_amount) + vproj1*k_motion_lerp_amount;\n"
  32 "\n"
  33 "   aMotionVec0 = vec3( vproj0.xy, vproj0.w );\n"
  34 "   aMotionVec1 = vec3( vproj1.xy, vproj1.w );\n"
  35 "}\n"
  36 "\n"
  37 "#line      9        0 \n"
  38 "\n"
  39 "uniform mat4x3 uMdl;\n"
  40 "uniform mat4 uPv;\n"
  41 "uniform mat4 uPvmPrev;\n"
  42 "uniform vec4 uOffset;\n"
  43 "\n"
  44 "out vec4 aColour;\n"
  45 "out vec2 aUv;\n"
  46 "out vec3 aNorm;\n"
  47 "out vec3 aCo;\n"
  48 "out vec3 aWorldCo;\n"
  49 "\n"
  50 "void main()\n"
  51 "{\n"
  52 "   vec3 co = a_co*uOffset.w+uOffset.xyz;\n"
  53 "   vec3 world_pos0 = uMdl     * vec4( co, 1.0 );\n"
  54 "   vec4 vproj0     = uPv      * vec4( world_pos0, 1.0 );\n"
  55 "   vec4 vproj1     = uPvmPrev * vec4( co, 1.0 );\n"
  56 "\n"
  57 "   vs_motion_out( vproj0, vproj1 );\n"
  58 "\n"
  59 "   gl_Position = vproj0;\n"
  60 "   aWorldCo = world_pos0;\n"
  61 "   aColour = a_colour;\n"
  62 "   aUv = a_uv;\n"
  63 "   aNorm = mat3(uMdl) * a_norm;\n"
  64 "   aCo = a_co;\n"
  65 "}\n"
  66 ""},
  67    .fs =
  68 {
  69 .orig_file = "shaders/model_font.fs",
  70 .static_src =
  71 "out vec4 FragColor;\n"
  72 "\n"
  73 "uniform sampler2D uTexMain;\n"
  74 "uniform vec4 uColour;\n"
  75 "\n"
  76 "in vec4 aColour;\n"
  77 "in vec2 aUv;\n"
  78 "in vec3 aNorm;\n"
  79 "in vec3 aCo;\n"
  80 "\n"
  81 "#line       1        1 \n"
  82 "const float k_motion_lerp_amount = 0.01;\n"
  83 "\n"
  84 "#line      2        0 \n"
  85 "\n"
  86 "layout (location = 1) out vec2 oMotionVec;\n"
  87 "\n"
  88 "in vec3 aMotionVec0;\n"
  89 "in vec3 aMotionVec1;\n"
  90 "\n"
  91 "void compute_motion_vectors()\n"
  92 "{\n"
  93 "   // Write motion vectors\n"
  94 "   vec2 vmotion0 = aMotionVec0.xy / aMotionVec0.z;\n"
  95 "   vec2 vmotion1 = aMotionVec1.xy / aMotionVec1.z;\n"
  96 "\n"
  97 "   oMotionVec = (vmotion1-vmotion0) * (1.0/k_motion_lerp_amount);\n"
  98 "}\n"
  99 "\n"
 100 "#line     12        0 \n"
 101 "\n"
 102 "void main()\n"
 103 "{\n"
 104 "   compute_motion_vectors();\n"
 105 "   FragColor = texture( uTexMain, aUv ) * uColour;\n"
 106 "}\n"
 107 ""},
 108 };
 109
 110 static GLuint _uniform_model_font_uMdl;
 111 static GLuint _uniform_model_font_uPv;
 112 static GLuint _uniform_model_font_uPvmPrev;
 113 static GLuint _uniform_model_font_uOffset;
 114 static GLuint _uniform_model_font_uTexMain;
 115 static GLuint _uniform_model_font_uColour;
 116 static void shader_model_font_uMdl(m4x3f m){
 117    glUniformMatrix4x3fv(_uniform_model_font_uMdl,1,GL_FALSE,(float*)m);
 118 }
 119 static void shader_model_font_uPv(m4x4f m){
 120    glUniformMatrix4fv(_uniform_model_font_uPv,1,GL_FALSE,(float*)m);
 121 }
 122 static void shader_model_font_uPvmPrev(m4x4f m){
 123    glUniformMatrix4fv(_uniform_model_font_uPvmPrev,1,GL_FALSE,(float*)m);
 124 }
 125 static void shader_model_font_uOffset(v4f v){
 126    glUniform4fv(_uniform_model_font_uOffset,1,v);
 127 }
 128 static void shader_model_font_uTexMain(int i){
 129    glUniform1i(_uniform_model_font_uTexMain,i);
 130 }
 131 static void shader_model_font_uColour(v4f v){
 132    glUniform4fv(_uniform_model_font_uColour,1,v);
 133 }
 134 static void shader_model_font_register(void){
 135    vg_shader_register( &_shader_model_font );
 136 }
 137 static void shader_model_font_use(void){ glUseProgram(_shader_model_font.id); }
 138 static void shader_model_font_link(void){
 139    _uniform_model_font_uMdl = glGetUniformLocation( _shader_model_font.id, "uMdl" );
 140    _uniform_model_font_uPv = glGetUniformLocation( _shader_model_font.id, "uPv" );
 141    _uniform_model_font_uPvmPrev = glGetUniformLocation( _shader_model_font.id, "uPvmPrev" );
 142    _uniform_model_font_uOffset = glGetUniformLocation( _shader_model_font.id, "uOffset" );
 143    _uniform_model_font_uTexMain = glGetUniformLocation( _shader_model_font.id, "uTexMain" );
 144    _uniform_model_font_uColour = glGetUniformLocation( _shader_model_font.id, "uColour" );
 145 }
 146 #endif /* SHADER_model_font_H */